Energy storage system and control method based on distributed multi-battery modules

Abstract

The invention belongs to the technical field of electric vehicle battery energy storage, and particularly relates to an energy storage system and a control method based on a distributed multi-batterymodules. For electric vehicles, multiple modules and miniaturized battery modules with operation function control circuits are used. Each of multiple battery modules can be independently controlled and can be independently connected with a power grid for charging and discharging. Plug-and-play without piles is realized. Distributed battery modules can be identified, controlled, shared and flexiblyreplaced. The distributed battery modules purchased by users can be replaced at will within the warranty period or warranty amount simply by paying for electricity and service fees, which is convenient for complete monitoring of the battery modules through registration and encrypted verification. The entire process of battery operation, storage, and replacement is controlled, which greatly provides the safety of batteries, and facilitates the separation management of electricity and vehicles. The requirements for the use of electric vehicles are greatly satisfied.

Description

technical field [0001] The invention belongs to the technical field of battery energy storage for electric vehicles, and in particular relates to an energy storage system based on distributed multi-battery modules and a control method. Background technique [0002] As we all know, new energy electricity and electric vehicles are becoming more and more widely used and popularized, and have become a development trend of energy and environmental protection. In particular, the advancement of energy storage batteries provides a feasible support and technical path for the stable power supply of new energy power, and at the same time promotes the application and promotion of electric vehicles. vigorous support and response. [0003] At present, because there are not enough charging piles for electric vehicles and the charging speed is slow, it is inconvenient to charge and wastes the precious time of users; and for electric vehicles that use battery replacement, due to the high pr...

AI Technical Summary

Problems solved by technology

[0003] At present, because there are not enough charging piles for electric vehicles and the charging speed is slow, it is inconvenient to charge and wastes the precious time of users; and for electric vehicles that use battery replacement, due to the high price of batteries, users cannot use them one at a time; especially those currently used in the market The battery does not have a functional circuit module to control the operation, and there are differences between the old and the new batteries in the replacement station, and the value is different, and it is difficult to distinguish between true and false. In particular, most electric vehicles use integrated battery modules, and a single unit weighs hundreds of kilograms. , requires professional handling equipment for battery replacement operations, resulting in less investment in outlets and difficulties in battery replacement for users, which affects users' enthusiasm for using electric vehicles and also causes troubles for electric vehicle users

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